:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242836;
  --border: rgba(255,255,255,0.07);
  --accent: #ef7b10;
  --accent-light: #ef7b1015;
  --text: #e8e8ec;
  --muted: #6b7084;
  --danger: #ef4444;
  --warn: #f59e0b;
  --success: #22c55e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Roboto', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

.wrapper {
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Header ── */
header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--accent);
  flex-wrap: wrap;
  gap: 1rem;
}
.logo-area h1 {
  font-family: 'Roboto', sans-serif;
  font-weight: 900;
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  line-height: 1.1;
  color: var(--text);
}
.logo-area h1 span {
  color: var(--accent);
}
.logo-area p {
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 0.4rem;
  font-family: 'Roboto Mono', monospace;
}

.header-right { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.live-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-light);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.4rem 0.9rem;
  border-radius: 2rem;
  font-size: 0.7rem;
  font-family: 'Roboto Mono', monospace;
  font-weight: 500;
}
.live-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .4; transform: scale(0.7); }
}

.refresh-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  border-radius: 2rem;
  font-size: 0.7rem;
  cursor: pointer;
  font-family: 'Roboto Mono', monospace;
  transition: all 0.2s;
}
.refresh-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── KPI Grid ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 640px) { .kpi-grid { grid-template-columns: 1fr; } }

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(239,123,16,0.18);
}
.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-color, var(--accent));
}
.kpi-label {
  font-size: 0.68rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
  font-family: 'Roboto Mono', monospace;
  font-weight: 500;
}
.kpi-value { font-size: 2rem; font-weight: 900; line-height: 1; }
.kpi-sub   { font-size: 0.72rem; color: var(--muted); margin-top: 0.35rem; }

/* ── OPS Gauge ── */
.ops-gauge {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.gauge-ring {
  position: relative;
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}
.gauge-ring svg { transform: rotate(-90deg); }
.gauge-ring .gauge-value {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--text);
}
.gauge-meta { display: flex; flex-direction: column; gap: 0.2rem; }
.gauge-status {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── Trend Card ── */
.trend-card {
  margin-bottom: 1.5rem;
}
.trend-card .card-title {
  flex-wrap: wrap;
  gap: 0.6rem;
}
.trend-card canvas {
  width: 100% !important;
}
.trend-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.trend-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.3rem 0.7rem;
  border-radius: 2rem;
  font-size: 0.65rem;
  font-family: 'Roboto Mono', monospace;
  cursor: pointer;
  transition: all 0.2s;
}
.trend-btn.active,
.trend-btn:hover {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.trend-dates {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.trend-dates input[type="date"] {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.25rem 0.5rem;
  border-radius: 8px;
  font-size: 0.65rem;
  font-family: 'Roboto Mono', monospace;
}
.trend-dates input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
}
.trend-dates span {
  color: var(--muted);
  font-size: 0.7rem;
}

/* ── Metrics Row ── */
.metrics-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 768px) { .metrics-row { grid-template-columns: 1fr; } }

/* ── Card (generic) ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.card-title {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  font-family: 'Roboto Mono', monospace;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── Bars ── */
.bar-group { margin-bottom: 0.85rem; }
.bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  margin-bottom: 0.3rem;
  font-weight: 500;
}
.bar-label span:last-child {
  font-family: 'Roboto Mono', monospace;
  font-weight: 500;
}
.bar-track { background: var(--surface2); border-radius: 6px; height: 10px; overflow: hidden; }
.bar-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 1s cubic-bezier(.4,0,.2,1);
}

/* ── Distribution (horizontal) ── */
.dist-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.dist-row {
  display: grid;
  grid-template-columns: 48px 1fr 36px;
  gap: 0.6rem;
  align-items: center;
}
.dist-row-label {
  font-size: 0.75rem;
  font-family: 'Roboto Mono', monospace;
  font-weight: 500;
  color: var(--muted);
}
.dist-row-track {
  background: var(--surface2);
  border-radius: 6px;
  height: 10px;
  overflow: hidden;
}
.dist-row-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 1s cubic-bezier(.4,0,.2,1);
}
.dist-row-count {
  font-size: 0.78rem;
  font-weight: 700;
  text-align: right;
  font-family: 'Roboto Mono', monospace;
}

/* ── Alerts Card ── */
.alerts-card {
  margin-bottom: 1.5rem;
  border-left: 3px solid var(--danger) !important;
}
.alert-badge {
  background: var(--danger);
  color: #fff;
  font-size: 0.65rem;
  padding: 0.15rem 0.6rem;
  border-radius: 2rem;
  font-family: 'Roboto Mono', monospace;
  font-weight: 600;
}
.alert-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  font-size: 0.8rem;
}
.alert-item:last-child { border-bottom: none; }
.alert-score {
  background: var(--danger);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-family: 'Roboto Mono', monospace;
}
.alert-name { font-weight: 600; }
.alert-date { font-size: 0.7rem; color: var(--muted); font-family: 'Roboto Mono', monospace; }

/* ── Comments ── */
.comments-card { margin-bottom: 1rem; }
.comment-item {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
}
.comment-item:last-child { border-bottom: none; }
.comment-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent);
  flex-shrink: 0;
}
.comment-meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.25rem;
  flex-wrap: wrap;
}
.comment-name  { font-size: 0.82rem; font-weight: 700; }
.comment-date  { font-size: 0.68rem; color: var(--muted); font-family: 'Roboto Mono', monospace; }
.comment-stars { font-size: 0.72rem; }
.comment-text  { font-size: 0.8rem; color: #a0a4b8; line-height: 1.55; }
.comment-note  { font-size: 0.76rem; color: var(--accent); margin-top: 0.25rem; font-style: italic; }

/* ── Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface2) 25%, var(--surface) 50%, var(--surface2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
  height: 1.2rem;
  width: 100%;
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Misc ── */
.error-msg {
  color: var(--danger);
  font-size: 0.82rem;
  text-align: center;
  padding: 2rem;
}
.no-data {
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
  padding: 1rem;
}

/* ── Period Comparison Deltas ── */
.delta-up { color: var(--success); }
.delta-down { color: var(--danger); }
.delta-neutral { color: var(--muted); }
.delta-arrow { font-size: 0.8em; margin-right: 2px; }

/* ── Card Entrance Animations ── */
.card, .kpi-card {
  animation: fadeSlideIn 0.5s ease-out both;
}
.kpi-grid .kpi-card:nth-child(1) { animation-delay: 0.05s; }
.kpi-grid .kpi-card:nth-child(2) { animation-delay: 0.10s; }
.kpi-grid .kpi-card:nth-child(3) { animation-delay: 0.15s; }
.trend-card { animation-delay: 0.20s; }
.metrics-row .card:nth-child(1) { animation-delay: 0.25s; }
.metrics-row .card:nth-child(2) { animation-delay: 0.30s; }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}